Suntest
Suntest GYDC-S1 Controller

Manufacturer: Suntest Co.,Ltd
Model: GYDC-S1
Magnetostrictive Displaiacement Transducer
Model GY Series are “Displacement Transducers” employing magnetostrictive phenomena, especially the Wiedemann effect. An ultra-sonic wave is generated by a moving magnet operating near a magnetostrictive wave guide on which the sonic wave propagates up to the head of the transducer.
The propagation time is precisely measured by state of the art technology and then the absolute displacement transducer is operational.

[ Principle ]
The figure shows the fundamental principle of operation.
When a current pulse like A is given to the wave guide, it generates a circumferential magnetic field on the wave guide, then placement of the movable magnet (polarized axially) as shown, only the axial magnetic field of the magnet affecting the wave guide produces a resultant field as indicated by the dotted line.
The vector combination of these two fields produces torsional strain, a phenomenon known as the Wiedemann Effect.
It is a form of vibration and propagates along the wave guide in the form of a transverse ultra-sonic wave.
The GY series displacement transducers detect the propagation time of the ultra-sonic wave.
GYDC-S1 Controller
High accuracy digital output (Parallel output)

GYDC-S1 outputs displacement of the magnet by a digital parallel output of minimum resolution 1μm. Using DIP switches in the case cover, you can change the code (binary or gray), the output direction, and the logic of the alarm output. And using pin A6 and A7 of parallel input in GYDC-S1, you can adjust zero and full points. With the captive software (GPM), zero and gain adjustment is possible at user side.
- Noise cancellation
- GPM setting
◆Auto-calibration
In combination with the probe (GYMR6, GYSE-R, GYKMR, GYRHP-MR6) having auto calibration function, a difference in the output when you change the probe is adjusted automatically.
Specifications
| Position(24bit) | Parallel (NPN), Binary code (*1), Negative logic (*2) |
|---|---|
| Resolution | Std. 0.01mm (Min.0.001mm) (*3) 0.1mm (*4) |
| Alarm | Open drain (*5) |
| Power supply | ≦24VDC±5% (≦150mA) |
| Sampling freq. | Std. 1kHz ( Total rod length : 1300mm) |
| Temp. drift | ≦±1μm/°C (*6) |
| Operating temp. | 0°C〜+65°C |
| Storage temp. | -20°C〜+75°C |
(*1) can be changed to Gary code at user side
(*2) Tr On = output “0”
(*3) associated probe : GYMR6, GYSE-R, GYcRS, GYMR5, GYFRS, GYKMR, GYRHP-MR6, EX-GYdT-RS
(*4) associated probe : GYMS, GYGS, GYPM, GYPE2K, GYPMR, GYcRP, GYHTR, GYHR, EX-GYdS-RP, IGY4
(*5) cable disconnection and magnet drop
(*6) not include the temp. drift of the probe
Model No.
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① Resolution
D2 :0.1mm
D3 :0.05mm
D4 :0.01mm
D5 :0.005mm
D7 :0.002mm
D8 :0.001mm
「D4」is std. : GYSE-R, GYcRS, GYMR5, GYMR6, GYKMR, GYRHP-MR6, GYFRS, EX-GYdT-RS
「D2」only : GYGS, GYMS, GYPM, GYPMR, GYcRP, GYHR, GYHTR, EX-GYdS-RP, IGY4, GYPE2K
② Probe
MR6 : GYMR6
SR : GYSE-R
RS : GYcRS
RP : GYcRP
R5 : GYMR5
FS : GYFRS
HTR : GYHTR
HR24 : GYHR
MS : GYMS
GS : GYGS
PM : GYPM
P2 : GYPE2K
RR : GYPMR
KMR : GYKMR
PMR6 : GYRHP-MR6
ETS : EX-GYdT-R
ESP : EX-GYdS-R
I4 : IGY4
③ Effective Stroke (mm)
④ Head dead zone
□ :□ mm (option) (specified by customers)
⑤ Associated magnet or float
| magnet | float |
|---|---|
| MG0:No.Φ M0SM:No.ΦSPM M0LM:No.ΦLPM M2P:No.2P M2PN:No.2PN M3:No.3 M11:No.11 M11N:No.11N T142:No.T14-M2 T144:No.T14-M4 T162:No.T16-M2 T163:No.T16-M3 BA:No.2KYN-17-LG | F28S:Φ28SUS316L F30S:Φ30SUS316L F40S:Φ40SUS316(B) F42S:Φ43SUS316L F50S:Φ50SUS316L F54S:Φ54SUS304 F25N:RF-A10 plastic F28N:RF-A6 plastic |
- Same as the selected magnet or float of probe.
- Please consult our factory in case of requesting special magnet or float.
- This model code means only specifying associated magnet or float.
- Ordering magnet or float individually.
<Output code / Direction of output >
◆ The default is Binary code, output value increase when magnet moves toward tip.
◆ Possible to change to Gray and decrease respectively with inside DIP switch.
Dimensions
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